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144310169 = 791826711
BaseRepresentation
bin10001001100111…
…11111110011001
3101001112201100002
420212133332121
5243420411134
622153022345
73401421233
oct1046377631
9331481302
10144310169
1174506403
12403b49b5
1323b89143
1415247253
15ca0887e
hex899ff99

144310169 has 4 divisors (see below), whose sum is σ = 146136960. Its totient is φ = 142483380.

The previous prime is 144310147. The next prime is 144310171. The reversal of 144310169 is 961013441.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 961013441 = 2294341887.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-144310169 is a prime.

It is a super-2 number, since 2×1443101692 = 41650849753617122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (144310109) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 913277 + ... + 913434.

It is an arithmetic number, because the mean of its divisors is an integer number (36534240).

Almost surely, 2144310169 is an apocalyptic number.

It is an amenable number.

144310169 is a deficient number, since it is larger than the sum of its proper divisors (1826791).

144310169 is an equidigital number, since it uses as much as digits as its factorization.

144310169 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1826790.

The product of its (nonzero) digits is 2592, while the sum is 29.

The square root of 144310169 is about 12012.9167565583. The cubic root of 144310169 is about 524.5243389369.

The spelling of 144310169 in words is "one hundred forty-four million, three hundred ten thousand, one hundred sixty-nine".

Divisors: 1 79 1826711 144310169